- 1906: She joined a militant organisation which campaigned for women’s right to vote.
- 1908: She was Chair of 'Platform 14' at a rally in Hyde Park and later, in 1910, Chair of the Welsh Platform.
- 1910: As a Welsh speaker, Rachel led a campaign in north Wales during the summer and was part of a deputation which met with Lloyd George at his house in Criccieth.
- 1911: June – After that meeting, Rachel was appointed WSPU organiser for Wales.
- Rachel was a key figure within the movement, even meeting the Home Secretary in the House of Commons.
- As Rachel became established in London, she spoke alongside the Pankhursts, Annie Kenney and other leading suffragettes across England.
- Rachel focused on the general issues surrounding the cause of the rights of women to vote, as well as changing the status of imprisoned suffragettes.
- 1913: April – The notorious 'Cat and Mouse Act' was passed, and Rachel Barrett was arrested, along with five others.
- 1928: Rachel supported her friend, Radclyffe Hall, when her novel, 'The Well of Loneliness', a story of lesbian love, became the subject of an obscenity trial.
‘An exceptionally clever and educated woman.’ – Elizabeth Crawford, ‘The Women’s Suffrage Movement: A reference guide 1866–1928’ (Routeledge 2001), p. 36